user
Given a list of topics, find a source or a citation for each topic.

Additional Context:
Topics: Climate Change, US Presidential Elections

Answer:
assistant
Climate Change: NASA. (2020). Climate change: How it affects us. https://climate.nasa.gov/effects/
US Presidential Elections: United States Elections Project. (2020). State-level presidential election results by year. https://www.electproject.org/2020-primary